Vacuum cover



F. R. CRISI.

VACUUM COVER.

APPLICATION FILED ocT. 25, 1921.

Patented Apr. 4, 1922.

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`fiile:11,3234l` i' To all whomz't may concern.' Y 1 l v n Be it known that FIRMAN R.' Cnlsfr, a-citi- Zen of 5 the United States, residing at Scran- ;,ton,` in the county of. Lackawannasand'State of Pennsylvania, Yhas :iinven-tedl certain new and useful Improvements in Vacuum* Cov- 1-ers, of-which the following isa specification.

` the drawing, but may be changed and mod-- This. invention relates'` tol vacuum covers or closures for receptacles'andthe primary object' ofthe invention 1sto provide an '1mproved,` hermetically sealingl 'device ``for maintaining va practically constanttempera-V v turewithin acontainer for along dfu'r'ation of time. y v Y One of the obyects ofthe Invention 1s to ,provide a Vnon-perdus vacuum cover or fclolsure 'adapted 'to fit within Atheneck portion Y of a container or receptacle and held in locking engagement therewith, whereby aconetant l temperature may be' maintained'by preventing-heat or vcold passing 'through the fwalls. --f f A still lfurtherobject Jof v'the 'invention is "the provision of a glass-orlmetallicyacum lsanitary closure adapted-for sealing various types of vacuum containers or receptacles and' particularly'v vacuum lcans or vacuuml bottles, including means I- VforA `grippingsaid closure-inlocking engagement with the; neck of thecontainer or receptacle, whereby an effective seal is had preventingithe vpassage of heat or cold so that a'constant temperaturefmay be maintained within the* receptacle. v Vv f lAnother and very important-object of the invention is the provision of ae-sanitary closure of tlie type above set forth, adapted for Vuse on practically any type of metallic or non-metallic receptacle', and onel in which the parts are extremely simple in construction, easily assembled, rigid and durable, highly efficient in operation, practical kand capable of being manufactured at a very low cost, whereby its commercial possibilities are greatly enhanced.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming a part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing in Ytraigan, v1 is a -verticalseeaonaifviewlmken through? al conyentional form 'of' a" vacuum 'container-and illustrating 4the application of the novel covercon'struclted in accordance Y -witli theffin'vention.

Figure- 2 yis ai transverse' sectional Vview throughfthe-cover and'fnec'k ofy the f" container,

:Figui-e3 is a-detail view., showing the slot 1 arrangement andthe' neck of.v thelv container. fFi'gre 4 A isi al further? detail view'r showing the yh 'ig orflpin on the 7 cover adapted "to 'co- A y-operatew-itlrtheres'pective'slots in the neck "Of wel @Meien Ivii gigdre 51is` a-"lanof the closure member;

Y i Figure' isafcrossf sectional view throughk VReferring now to thedrawings, wherein like patslfd'signate .corresponding lparts throughout"theeeveral views, 5 .designates generally, the'gbdyfof al vacuumy receptacle e `or rtainerfsuch' as vav vacuum bottle or milk A`v ':a-,' and 6" thefnner 2face o rj'wall thereof, separated I y. suitable flugsy whereby a f 'vacuumL space` isl'l-fo'rmed 'betfween'jsaid walls "an'df adapted tohave :thelair' exhaustedtherefrom thrqughthe ,sealing off vtube9Y in-fthe `bottom-the1"eof,`L asf` clearlyVv shown Figure y,

ylaf thedrawings; n

The restricted vor neck portion 10 ofy the sald container has its walls flared outwardly to receive my novel and improved, nonporous, glass or metallic closure member, designated in its entirety by numeral 11,

which is shaped to'conform to the neckV portion of the receptacle.V The said closure member 11 is also provided with 'a .vacuum i ,i `Sliecilcatiron of Iettersllatent. i cPatented Avli)rl4r, 11922, l .Application nim october 25,1531, serial in. 510,264; i i' soV space 12, about the side walls andbottom v thereof,vand a sealingv of tube 13, whereby the air may be exhausted from the said air space to thus provide a vacuum closure member, whereby the heat may be retained within the receptacle for a long duration' of time.A

Referring now articularly to Figure l, it will ybe observed t atthe closure member 11 thereof, so as to confine a gasket 16, thusv producing a positive sealing meansbetv'veen'theI said closure member and the receptacle proper. The top of the closure meinberwll is formed Awitha depression 17, and a web 18, constituting a handle, whereby the said closure member may bejprcperly seated within I the neck of the bottle, as clearly understood.

Thecover 19 lforisaid.receptacle,.is also provided with the laringwalls 20,7said walls having the usualprotuberance lor.` projection v 2l thereon for engagement :with rthe .L'- shaped slots 22, oppositely disposed on Vthe neck of thev receptacle, so thatl when the j cover is seatedfthereonY and turnedthesaid protuberances V21' willi lie in engagement with ,the slots T22 and positively lock-'the samethereon. It will-also beV observed that the sidewall of thecover, is .bentfin- 'wardly as shownat, 24, in suchv manner as i -to ov'erlie'V the-,top orfflanged vportion-214: of

the closure member, so `thatupon, rotation of the saidcoventhe closurelmemberfwill be pressed firmly/fintov engagement with 'the gasketin makingwan air-.tight sealbetween the kreceptacle and saidclosuremember,

In the.; accompanying j drawings,` I; have illustrated my invention embodied .inf one form by. .wa`y of,.,examp 1e,and which in ractic'e has been found to be `highly satis-V K. 'actory injobtaining the desired results.y It Will be obvious however, that other-embodi-v vments, may bel adapted, land that` various changes-iny the, details of construction may be lresorted to by tliose'skilled in themart without; departing from the spirit-and ,scope ofthe invention.I IIt is .furthermoreunderstood that. theinventionis not lnecessarily limited or' restricted. to the precise elements l shownI except vin so far4 assuch -limitations are speclfie'din vthe',subje'ct`v matter being claimed.

'y Havin'gfthus,

invention, what I claim `as'` .new and [desire to secure Aby Letters Patent of the United States is: Y v Y l. In a device of the class described the combination with a container having spaced "walls,`of a non-porous closure adapted to f fit within the neck portion of said container and provided with a vacuum space adjacent the outer wall and bottom thereof, aflange formed with said closure extending to the outerwwall of the neck portion thereof and a cover for said containercooperating with the flange of the closure to'fproduce an air-V tight seal. Y Y

2. In a device of the class described, the combinationwith a container having spaced .walls, of anon-porous closure adapted to fit,-

ingto the edge of the outer-wall of the neck portio'n and a cover for saidcontainer having an inwardly bent `bead on itsside wall vadapted Vto bearbn theflange ,of theclosure to effect an air tight seal. Y

combination witha container having spaced walls, of a non-porous closure vadapted to lfit v 3. In a device of the class described, the

within the neck of said container and pro- 7 vided with a vacuum space adjacent the outer wallvand bottom thereofya flange formed. on :the outer edge of said closure, a counter- *sunk hand hold inthe top thereof, a cover for said containeroverlying its neck portion, a lug and sloty connection between thek cover and the neck portion for locking the same and an inwardly bent bead formed on `the v,side wall of the rcover bearing againstthe flanged closure asthe cover is moved into locking engagement with the neck of the container. Y

testimony whereof IafIiXiny signature in presence of two witnesses. Y, A

, y y FIRMAN RAC'RIST.

Witnesses: .Y lRo'r. P. KOEHLER, i MM. E. HEALEY. 

